| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber composition, for improving the anti-oxidizing effect sustainability of a vulcanized rubber composition. <P>SOLUTION: The rubber composition includes an antioxidant for rubbers, containing an anti-oxidizing substance for rubbers and a steroid, and a rubber component. The antioxidant for rubbers is preferably obtained by supporting the anti-oxidizing substance for rubbers on the steroid. Preferably, in infrared spectroscopic measurements for the antioxidant for rubbers, the peaks based on O-H stretching vibration and the peaks based on C=O stretching vibration contained in the steroid supporting the anti-oxidizing substance for rubbers are different from the peaks based on O-H stretching vibration and the peaks based on C=O stretching vibration contained in the steroid not supporting the anti-oxidizing substance for rubbers. <P>COPYRIGHT: (C)2013,JPO&INPIT |
